iEB

What iEB does

iEB Gummitechnik Eisele & Co. GmbH is a privately held, family-owned German manufacturer founded in 1970 by Wilfried Eisele and now in its fourth generation of ownership. The company produces custom-made-to-measure sealing profiles, frames, and soft plastic profiles from thermoplastic elastomer (TPE), EPDM, PVC, and silicone at its Michelstadt headquarters in Hesse and a Trossin (northern Saxony) branch, operating 11 main extrusion lines supported by more than 20 coextruders in three-shift operation with in-house toolmaking, CAD-supported development, and CAD-based 8-camera online quality measurement. It serves primarily window and door manufacturers (aluminum, wood, PVC) and secondarily the industrial, construction, automotive, mechanical/electrical engineering, solar, and furniture segments.

Its product portfolio centers on standard TPE and EPDM sealing profiles and includes several proprietary, patent- or trademark-protected offerings: the THERMoos foamed TPE technology with embedded air inclusions for improved insulation; the Snap-In Mitteldichtung, a patented three-component aluminum window seal; the Rollzapfenfuß, a patented wood window foot geometry; multi-material coextrusion profiles combining up to four materials; welded frames produced with converting partners; and a self-developed Spulenpfandsystem coil deposit packaging system.

iEB generates revenue through project-based custom manufacturing with quote-based pricing and multi-year customer relationships, deliberately avoiding stock products. The go-to-market is sales-led, combining an inside sales team with field sales visits on request, supported by a German-language website, contact forms, and direct outreach. Customers benefit from RAL- and CSTB-certified products, ISO 9001:2015 quality management, ISO 14001 environmental management (since May 2024), and an Environmental Product Declaration from IFT Rosenheim (since July 2023), with end-markets concentrated in Germany and western Europe.

Name

iEB

Legal name

iEB Gummitechnik Eisele & Co. GmbH

Website

https://ieb.eu

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

251–500 employees

Short description

iEB Gummitechnik is a German, family-owned custom manufacturer of TPE and EPDM sealing profiles, frames, and soft plastic components serving window, door, industrial, automotive, construction, and engineering customers across Germany and western Europe.

Ownership category

akta.pro rank

Product category

Custom Sealing Profile Manufacturing

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Seals, Gaskets & O-Rings (Industrial Elastomer) (IMANALAC)

akta.pro secondary industry

Automotive Weatherseals, Gaskets & Sealing Systems Manufacturing (Door/Window/Trunk Seals) (IMACAKAI)

Keywords

• Thermoplastic elastomer profiles
• EPDM sealing solutions
• Custom profile extrusion
• Window and door seals
• Coextruded rubber profiles

Headquarters

HQ city

Trossin

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Custom Sealing Profile Manufacturing: iEB manufactures custom-made-to-measure sealing profiles from TPE and EPDM materials. The company produces no stock products (Ware von der Stange). Revenue is generated through custom manufacturing from initial samples through to series production readiness. Customers receive complete solutions including development, tooling, production, and delivery.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

iEB Gummitechnik manufactures custom-made-to-measure sealing profiles from thermoplastic elastomers (TPE) and EPDM, along with bonded and welded frames and soft-plastic profiles in all standard Shore hardnesses. Products are produced on eleven main extrusion lines supported by more than twenty coextruders in three-shift operation, with full in-house CAD-based development, toolmaking, and quality control. The company serves window and door manufacturers, industrial producers, construction, automotive, mechanical engineering, and electrical engineering customers primarily in Germany and Western Europe.

Product overview

iEB Gummitechnik is a leading manufacturer of custom sealing solutions primarily from TPE (thermoplastic elastomers) and EPDM materials. The company operates 11 main extrusion lines supported by over 20 coextruders in three-shift operation, producing custom profiles from prototype to series production. The product portfolio centers on TPE and EPDM sealing profiles for windows, doors, industrial, construction, automotive, and mechanical engineering applications. Key proprietary offerings include THERMoos (foamed TPE technology with improved insulation properties), Snap-In sealing systems (patented three-component aluminum window seals), and Rollzapfenfuß (patented foot geometry for wood windows). The company also manufactures coextruded multi-material profiles combining up to four materials, offers bonded and welded frame fabrication, and provides patented deposit packaging systems. All products are developed CAD-supported with in-house tool-making capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• THERMoos: Patentierte Technologie mit eingetragenem Warenzeichen - geschäumtes TPE-Material, das die Dämmeigenschaften von Bauelementen deutlich verbessert durch Lufteinschlüsse im Material
• snapin

Products and services

• TPE Sealing Profiles Custom-manufactured sealing profiles made from thermoplastic elastomers (TPE) in all standard Shore hardnesses, used in windows, doors, industrial manufacturing, construction, automotive, mechanical engineering, and electrical engineering.
• EPDM Sealing Profiles Ethylene propylene diene monomer (EPDM) sealing profiles available with fire rating B1 tested mixtures and PMMA compatibility, including exact EPDM and silicone variants, supplied in custom geometries and Shore hardnesses.
• THERMoos Foamed TPE Profiles Proprietary foamed TPE technology (registered trademark THERMoos) that creates air inclusions during granulate processing in the extruder, acting as additional insulators to significantly improve the insulation properties of building elements.
• Snap-In Sealing Systems Patented snap-in center sealing systems with special foot geometry for aluminum windows that snap into place, saving time and money in production while delivering a three-component sealing design.
• Welded Frames Bonded and welded frames produced in collaboration with experienced converting businesses using modern welding systems, including complex coextrusion profiles cut to custom dimensions with iEB-supplied in-house welding templates.
• Coextrusion Profiles Multi-material profiles combining up to four different materials (such as THERMoos with PP, soft solid materials, or hard TPE types) into a single sealing product via coextrusion technology.
• Deposit Packaging Systems (Spulenpfandsystem) Patented self-developed deposit packaging system offering sustainable packaging options (coils, continuous extraction cartons, six-meter stackable long-goods pallets) where customers can return coil packaging for a deposit refund.

Quantifiable outcome

• 100% recyclable TPE sealing profiles
• +2 more outcomes

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Institut für Fenstertechnik (IFT) RosenheimcoreStrategic or Co-development Partner · 1 July 2023IFT Rosenheim is a leading institute for window technology that issued iEB's Environmental Product Declaration (EPD) in July 2023 for TPE and soft-PVC sealings used in the building element sector. This partnership enables iEB to provide their customers with verified environmental data for their own EPD documentation.
• Süddeutsches KunststoffzentrumcoreStrategic or Co-development PartnerSüddeutsches Kunststoffzentrum (South German Plastics Center) provides expert support to iEB in quality management, particularly for RAL and CSTB certified products. This partnership ensures iEB maintains high quality standards and access to specialized expertise.
• Western European Raw Material PartnerscoreTechnology or IntegrationiEB sources raw materials from western European partners who share their quality standards. These partnerships ensure consistent quality and enable the company to implement new developments quickly in the market through close collaboration.
• Saveip GmbHminorOthersSaveip GmbH (Darmstadt) provides external web hosting services for iEB's website. Data processing is conducted under a data processing agreement (AVV) ensuring GDPR compliance.
• Confectionsbetriebe (Converting Companies)minorStrategic or Co-development PartneriEB works with experienced converting companies for frame and ring manufacturing. Modern welding systems can join complex coextrusion profiles to customer-specified dimensions. Welding templates are produced in-house by iEB, providing customers with complete value chain service.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Cooper Standard Automotive: Global automotive sealing and fluid-handling systems supplier. Comparable on EPDM and TPE sealing-profile technology for automotive weatherstrip applications, but operating at much larger scale and exclusively in the automotive segment.
• Hutchinson (TotalEnergies subsidiary): French elastomer and sealing specialist serving automotive, aerospace, and industrial customers. Comparable on TPE/EPDM sealing-profile technology, but with much broader scope and global reach than iEB's regional window/door focus.
• Trelleborg Sealing Solutions: Global leader in polymer sealing solutions across industrial, automotive, and building applications. Directly comparable as a multi-material sealing-profile manufacturer, but operates at vastly larger scale and across many more verticals than the niche-window-focused iEB.
• REHAU Industries: German polymer solutions provider with a large window-profile and sealing-systems business. Comparable on PVC and TPE window-sealing technology, but operates as a broad incumbent across furniture, automotive, and construction versus iEB's specialized focus.

Direct peers

• Dätwyler Sealing Solutions: Swiss-headquartered manufacturer of elastomer sealing components for automotive, healthcare, and general industry. Closely comparable in materials (EPDM, TPE) and custom-profile manufacturing, with similar multi-shift extrusion operations but a more diversified customer base.
• Frenzelit Werke: German manufacturer of technical sealing materials, gaskets, and elastomer components for industrial and HVAC applications. Comparable as a German Mittelstand competitor in custom sealing products with similar materials and certifications.
• Schlegel (Schlegel International): Manufacturer of pile and elastomer weatherstripping for windows and doors. Direct competitor in window-seal profiles serving European window OEMs, with comparable coextrusion technology and overlapping certifications.
• illbruck (Tremco): European manufacturer of sealing, bonding, and weatherproofing products for window and facade applications. Direct peer to iEB's window/door sealing business, with overlapping TPE/EPDM profile offerings and similar customer base of window OEMs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about iEB